diff --git a/CHANGES.txt b/CHANGES.txt
index 4e5f27ed..af067707 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,5 +1,6 @@
 0.5.0
 -----
+ * Turn off Spark UI as part of tests (CASSANALYTICS-67)
  * Make BulkWriterConfig extensible (CASSANALYTICS-168)
 
 0.4.0
diff --git a/cassandra-analytics-core/src/test/java/org/apache/cassandra/spark/TestUtils.java b/cassandra-analytics-core/src/test/java/org/apache/cassandra/spark/TestUtils.java
index dabf69ff..e2ca6a45 100644
--- a/cassandra-analytics-core/src/test/java/org/apache/cassandra/spark/TestUtils.java
+++ b/cassandra-analytics-core/src/test/java/org/apache/cassandra/spark/TestUtils.java
@@ -80,6 +80,7 @@ static SparkSession createSession()
                                // Spark is not case-sensitive by default, but we want to make it case-sensitive for
                                // the quoted identifiers tests where we test mixed case
                                .config("spark.sql.caseSensitive", "True")
+                               .config("spark.ui.enabled", "false")
                                .getOrCreate();
         }
     }
diff --git a/cassandra-analytics-integration-tests/src/test/java/org/apache/cassandra/analytics/SparkTestUtils.java b/cassandra-analytics-integration-tests/src/test/java/org/apache/cassandra/analytics/SparkTestUtils.java
index a3f6384a..bc9cdb74 100644
--- a/cassandra-analytics-integration-tests/src/test/java/org/apache/cassandra/analytics/SparkTestUtils.java
+++ b/cassandra-analytics-integration-tests/src/test/java/org/apache/cassandra/analytics/SparkTestUtils.java
@@ -194,6 +194,7 @@ public SparkConf defaultSparkConf()
                               // Spark is not case-sensitive by default, but we want to make it case-sensitive for
                               // the quoted identifiers tests where we test mixed case
                               .set("spark.sql.caseSensitive", "True")
+                              .set("spark.ui.enabled", "false")
                               .set("spark.driver.bindAddress", "127.0.0.1")
                               .set("spark.master", "local[8,4]")
                               .set("spark.cassandra_analytics.cassandra.version", "5.0.0")